{"product_id":"berkshire-chnw60440-choice®-600-nonwoven-wiper-4x4-case-of-12-000","title":"Berkshire CHNW60440, Choice 600 Nonwoven Wiper, 4\"x4\", Case of 12,000","description":"\u003ch2\u003eBerkshire CHNW60440, Choice 600 Nonwoven Wiper, 55% Cellulose \/ 45% Polyester, 4\" x 4\", Case of 12,000\u003c\/h2\u003e\n\n\u003cp\u003eThe Berkshire Choice 600 is a thermally bonded nonwoven cleanroom wiper constructed from a 55% cellulose \/ 45% polyester blend — the higher polyester content (compared to the Choice 500) delivering lower lint generation while maintaining good absorbency for ISO Class 5 through ISO Class 8 applications. Like all Choice nonwoven wipers, the Choice 600 is thermally bonded with no chemical binders, making it broadly compatible with IPA, acetone, and most common cleanroom cleaning agents without risk of extractable contamination. The 4\" x 4\" format is the standard small-format size for component cleaning, precision wiping, and confined-space applications where a larger wiper would be impractical.\u003c\/p\u003e\n\n\u003cp\u003eMTE Solutions stocks the CHNW60440 in cases of 12,000 sheets (300 wipes per pack, 40 packs per case). The 4\" x 4\" format is appropriate for component-level cleaning, PCB wiping, connector cleaning, and other precision tasks in ISO Class 5–8 environments where a 9\" x 9\" wiper is too large. For the same wiper in 9\" x 9\" format, see the CHNW60920. For higher absorbency in the 4\" x 4\" format, see the Choice 500 (CHNW50920 in 9\" x 9\"; no 4\" x 4\" Choice 500 is available).\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eCHNW60440\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBerkshire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eChoice 600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e4 in x 4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e55% Cellulose \/ 45% Polyester (Nonwoven)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBonding\u003c\/td\u003e\n\u003ctd\u003eThermally Bonded (No Chemical Binders)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eISO Classification\u003c\/td\u003e\n\u003ctd\u003eISO Class 5 – ISO Class 8 (Class 100 – Class 100,000)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Quantity\u003c\/td\u003e\n\u003ctd\u003e300 wipes per pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Quantity\u003c\/td\u003e\n\u003ctd\u003e12,000 sheets (40 packs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWipe Type\u003c\/td\u003e\n\u003ctd\u003eDry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemical Compatibility\u003c\/td\u003e\n\u003ctd\u003eIPA, acetone, most common cleanroom solvents\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eComponent cleaning, PCB wiping, precision\/confined-space wiping, ISO Class 5–8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the Choice 600 and the Choice 500?\u003c\/strong\u003e\u003cbr\u003eThe Choice 600 (CHNW60440) is 55% cellulose \/ 45% polyester — higher polyester content gives it lower lint generation. The Choice 500 is 60% cellulose \/ 40% polyester — higher cellulose content gives it better absorbency. Choose the 600 when lower lint is the primary requirement; choose the 500 when absorbency is more important.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy choose a 4x4 wiper over a 9x9?\u003c\/strong\u003e\u003cbr\u003eThe 4\" x 4\" format is designed for precision and confined-space applications — component cleaning, PCB wiping, connector cleaning, and other tasks where a 9\" x 9\" wiper is too large to handle accurately or would waste material. The smaller format also reduces the risk of cross-contamination when wiping small, discrete components.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat does “thermally bonded” mean and why does it matter?\u003c\/strong\u003e\u003cbr\u003eThermally bonded means the fibers are fused together using heat rather than chemical adhesives or binders. The absence of chemical binders means there are no extractable compounds that could leach into your process or react with solvents — making the Choice 600 broadly chemically compatible with IPA, acetone, and most common cleanroom cleaning agents.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat ISO cleanroom class is the Choice 600 rated for?\u003c\/strong\u003e\u003cbr\u003eThe CHNW60440 is rated for ISO Class 5 through ISO Class 8 environments (equivalent to Federal Standard 209E Class 100 through Class 100,000).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow many wipes come in a case of CHNW60440?\u003c\/strong\u003e\u003cbr\u003eEach case contains 12,000 wipes — 300 wipes per pack, 40 packs per case.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan the Choice 600 be used with IPA or other solvents?\u003c\/strong\u003e\u003cbr\u003eYes. The thermally bonded construction with no chemical binders makes the Choice 600 broadly compatible with isopropyl alcohol (IPA), acetone, and most common cleanroom solvents.\u003c\/p\u003e","brand":"Berkshire","offers":[{"title":"Default Title","offer_id":41491107250381,"sku":"CHNW60440","price":259.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0566\/4181\/4733\/files\/berkshire-chnw60440-choice-600-nonwoven-wiper-4x4-case-of-12000berkshirechnw60440-737502.jpg?v=1735935767","url":"https:\/\/mtesolutionsinc.com\/products\/berkshire-chnw60440-choice%c2%ae-600-nonwoven-wiper-4x4-case-of-12-000","provider":"MTESolutions","version":"1.0","type":"link"}